How Aider works under the hood
python
dev.to
Codex and Aider look alike from the outside: you type, the model edits your code. Inside they are opposite designs. In Codex the model has tools and explores the repository itself. In Aider the model has no tools at all. The harness decides what the model sees, the model answers in plain text, and the harness finds the edits in that text and applies them. This post follows one message through Aider's Python source, the same way my Codex and Elpis post does for Codex. Code is quoted verbatim fro